[PATCH net-next] octeontx2-af: add support for custom L2 header
From: <hidden>
Date: 2026-07-15 07:21:16
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marvell octeontx2 rvu admin function driver, networking drivers, the rest · Maintainers:
Sunil Goutham, Ratheesh Kannoth, Geetha sowjanya, Subbaraya Sundeep, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Satheesh Paul A <redacted> Add packet parsing support for custom L2 headers. Also add support to include a field from the custom header for flow tag generation. Introduce a new flow key type NIX_FLOW_KEY_TYPE_CH_LEN_90B which maps to the NPC_LT_LA_CUSTOM_L2_90B_ETHER layer type. This extracts a 2-byte field at a 24-byte offset in layer A to be used in flow tag generation. Signed-off-by: Satheesh Paul A <redacted> Signed-off-by: Nitin Shetty J <redacted> --- drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 1 + drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 7 +++++++ 2 files changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 253dfee9646e..10552e9cf519 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h@@ -1263,6 +1263,7 @@ struct nix_rss_flowkey_cfg { #define NIX_FLOW_KEY_TYPE_INNR_UDP BIT(15) #define NIX_FLOW_KEY_TYPE_INNR_SCTP BIT(16) #define NIX_FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17) +#define NIX_FLOW_KEY_TYPE_CH_LEN_90B BIT(18) #define NIX_FLOW_KEY_TYPE_CUSTOM0 BIT(19) #define NIX_FLOW_KEY_TYPE_VLAN BIT(20) #define NIX_FLOW_KEY_TYPE_IPV4_PROTO BIT(21)
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index c5bddd2ad920..dade7bb6deb7 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c@@ -4288,6 +4288,13 @@ static int set_flowkey_fields(struct nix_rx_flowkey_alg *alg, u32 flow_cfg) field->ltype_match = NPC_LT_LC_CUSTOM0; field->ltype_mask = 0xF; break; + case NIX_FLOW_KEY_TYPE_CH_LEN_90B: + field->lid = NPC_LID_LA; + field->hdr_offset = 24; + field->bytesm1 = 1; /* 2 Bytes*/ + field->ltype_match = NPC_LT_LA_CUSTOM_L2_90B_ETHER; + field->ltype_mask = 0xF; + break; case NIX_FLOW_KEY_TYPE_VLAN: field->lid = NPC_LID_LB; field->hdr_offset = 2; /* Skip TPID (2-bytes) */
--
2.48.1